[Share] Show Citation Counts

[volatile-static]

Description

Fetch citation counts from doi.org and show in a custom column.

Event

Program Startup

Operation

Script

Data

/**
 * Show Citation Counts
 * @author volatile-static
 * @usage plug-and-play
 * @see https://github.com/windingwind/zotero-actions-tags/discussions/150
 */
const pluginID = 'zoterotag@euclpts.com', // 与package.json一致
	window = require('window'),
	_caches = {};  // 缓存获取到的引用数
	
function renderCell(_, data, column) {
	const span = window.document.createElement('span');
	span.classList.add('cell');
	column.className.split(' ').forEach(name => span.classList.add(name));

	if (data.length < 1)  // 没有DOI
		return span;
	if (data[0] == '#' && !_caches[data]) {
		window.fetch('https://doi.org/' + data.substr(1), {
    		        headers: { 
				Accept: 'application/vnd.citationstyles.csl+json',
				'User-Agent': `mailto:${pluginID}; ${window.navigator.userAgent}`
			}
    	        })
			.then(res => res.json())
			.then(json => span.textContent = _caches[data.substr(1)] = json['is-referenced-by-count'])
			.catch(_ => span.textContent = '');
		span.textContent = 'Loading...';
	} else  // 已获取DOI
		span.textContent = data;
	return span;
}

require('Zotero').ItemTreeManager.registerColumns({
  	dataKey: 'action-citation-counts',
	label: 'Citations',
	dataProvider: item => _caches[item.getField('DOI')] || '#' + item.getField('DOI'),
	pluginID,  // 禁用Tag插件后消失
	renderCell
});

[Edilson-R]

Please, how can I make the information about the citation count persistent/permanent, and only have it reload if I trigger the event?

The issue is, I am using Zotero 7, and every time I scroll within a collection, it shows 'loading'. I would like to categorize by citation count, but the way it is now, it's always dynamic

[volatile-static]

Well, this is a question. I suggest you don't scroll before they were loaded, and then switch to another collection and switch back.
Actually, the citation number were cached once they loaded. The caches would not refresh until the plugin restarted.

[s1291]

Many thanks for the script. Below is a screenshot for people who do not understand Chinese:

[RoboEva]

Please, what citation is being queried here, Google, Ryan or other?

[s1291]

I do not understand your question. But in case you're asking for the source of citation, it's doi.org